Best practices when reading stored data

[musjj]

Say I have a EmailAddress newtype that I use to validate incoming requests before inserting them to the database. Now I want to read them back from the database, I have three choices:

• Use the new_unchecked method. This will litter all my code with misleadingly scary unsafe { ... } blocks.
• Use the try_new method. This means that additional, wasteful overhead will be incurred for every read. This also introduces a new error path that I have to take into account and propagate in all my function signatures.
• Use raw types (e.g. String, u32, etc.). This is what I do right now, but I definitely don't feel satisfied with it.

There's a similar discussion about it in the rust-lang forum: https://users.rust-lang.org/t/a-newtype-that-has-a-constructor-but-also-a-trusted-way-to-bypass-the-constructor/68593

I'm also thinking of having a separate struct (e.g. EmailAddressUnchecked?) that performs no validation, but it doesn't feel idiomatic.